Description
LM2596 3 A CC-CV Step-Down Converter
This LM2596 buck module has adjustable output-voltage and current-limit controls. A third potentiometer sets the current threshold at which the OK LED illuminates, as described by the source. The indicator can signal that load current has fallen below the set threshold; it does not independently detect battery charge completion.
Advertised applications
- Powering high-power LEDs that require constant current
- Use in CC/CV power-supply projects
- The source lists battery, solar-panel and wind-power applications; verify the full system requirements before use
Specifications
- Operating mode: non-synchronous buck
- Input voltage: 7–40 V DC
- Adjustable output voltage: 1.25–30 V DC
- Output current: 0–3 A; heatsink required above 2.5 A
- Maximum stated efficiency: 92%
- Switching frequency: 65 kHz
- Maximum stated output ripple: 50 mV
- Load regulation: ±0.5%
- Voltage regulation: ±2.5%
- Operating temperature: −40 to +85 °C
- Reverse-polarity protection: none
- Short-circuit protection: yes (as specified by the source)
- Thermal shutdown: integrated
- Dimensions: 43 × 21 × 14 mm
Battery and wiring safety
This CC/CV supply is not a chemistry-aware battery charger and does not replace a dedicated charge controller, battery protection, balancing or temperature monitoring. Use only with an appropriate charging profile and independent safeguards for the specific battery. Observe input polarity; reverse-polarity protection is not provided. Set and verify voltage/current limits before connecting a load. Provide adequate cooling above 2.5 A. Datasheet
